Metal plate bending device and method based on bending angle control and feedback torque regulation

Abstract

The invention relates to a metal plate bending device and method based on bending angle control and feedback torque regulation. The device comprises a driving motor arranged on a machine frame, a clamping and fixing base, and a main unit, wherein a bending shaft is installed on the driving motor, and a part to be machined is arranged on the clamping and fixing base. The device further comprises an ultrasonic thickness detector installed on the machine frame, an ultrasonic crack detector, a pressure sensor, a roller, a proximity switch, and a controller connected with the main unit, wherein the ultrasonic thickness detector, the ultrasonic crack detector, the pressure sensor and the proximity switch are all connected with the main unit through a DSP data processing module. By combining staged bending with feedback control, the number of cracks is reduced greatly, and machining quality is improved. The roller is arranged for extrusion friction of the inward-concave surface of the part to be machined, protruding burrs and cracks are effectively removed, and subsequent processing is omitted. Bending angle is controlled through the proximity switch, excessive bending is prevented, and machining safety is improved.

Description

technical field [0001] The invention relates to the technical field of sheet metal processing, in particular to a sheet metal bending device. Background technique [0002] Currently used sheet metal bending machine, commonly used two types of organic pillow hydraulic, mechanical bending machine is to use the motor through a series of gear transmission and eccentric wheel to realize the up and down movement of the working joint. The hydraulic bending machine is realized by using a hydraulic cylinder and a complete set of oil circuit control components. These bending machines play an important role in the mass production of large enterprises, but due to their high price and complex structure, their popularization is limited. With the development of the commodity economy, there are more and more stamping parts for small commodities for daily use. Small enterprises and even self-employed households urgently need sheet metal bending machines with low price and simple structure. ...

AI Technical Summary

Problems solved by technology

[0003] At present, some small bending machines have appeared on the market, which can realize simple bending processing of plates, but they have the following disadvantages: the bending torque is set by the experience of workers during work, and cannot be adjusted in real time with the thickness of the plate, and a constant The bending force cannot change with the change of the bending angle. The processing quality of the sheet is not high, and there are cracks in the sheet after bending; the sheet after bending can only be detected by naked eyes, which is not accurate and the effect is not good; Later, due to cracks and burrs on the concave surface of the sheet material, further processing is required, resulting in a long processing cycle; lack of angle control devices, prone to excessive bending, posing safety hazards

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